Home / 8,981.51-12,392.60-5,204.45

Finding the Fourth Proportional to 8,981.51, 12,392.60 and 5,204.45

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Solution

The fourth proportional to 8,981.51, 12,392.60 and 5,204.45 is: 7,181.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.51 : 12,392.60 = 5,204.45 : x
  2. Step 2: Convert to fraction form
    8,981.51/12,392.60 = 5,204.45/x
  3. Step 3: Cross multiply
    8,981.51x = 12,392.60 × 5,204.45
  4. Step 4: Simplify right side
    8,981.51x = 64,496,579.08
  5. Step 5: Solve for x
    x = 64,496,579.08/8,981.51
  6. Step 6: Final answer
    x = 7,181.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.